Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Freelance Software Developer (Ruby) - Quality Assurance (AI Trainer) [Remote]

$50 per hour
Full-time

Mindrift

South Carolina
  • Remote job

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates.

At  Mindrift , innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.

What we do

The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.

About the Role

GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects.

Although every project is unique, you might typically:

  • Code generation and code review
  • Prompt evaluation and complex data annotation
  • Training and evaluation of large language models
  • Benchmarking and agent-based code execution in sandboxed environments
  • Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.)
  • Adapting guidelines for new domains and use cases
  • Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects

How to get started

Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone.

  • You have a Bachelor's in Software Development, Computer Science, or other related fields. 
  • You have at least 3 years of professional experience with Ruby, hands-on experience with Ruby testing frameworks (RSpec, Minitest, Capybara) and automation tools
  • Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects.
  • Code review experience is a must.
  • Hackathon or competitive coding experience is a plus.
  • Your level of English is advanced (C1) or above .
  • You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines.
  • Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge.

Why this freelance opportunity might be a great fit for you?

  • Get paid for your expertise, with rates that can go up to $50/hour  depending on your skills, experience, and project needs.
  • Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments.
  • Work on advanced AI projects and gain valuable experience that enhances your portfolio.
  • Influence how future AI models understand and communicate in your field of expertise.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Freelance Software Developer (Ruby) - Quality Assurance (AI Trainer) [Remote] in South Carolina vacancy
  • $60 per hour

     ...A leading AI technology company is seeking proficient programmers to contribute to cutting-edge AI systems with a fully remote opportunity...  ..., focusing on Android development, and write clear, high-quality code. The ideal candidate will have fluency in English, experience... 
    Suggested
    Hourly pay
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    3 days ago
  • $60 per hour

     ...A leading AI development company seeks proficient programmers to contribute to AI systems remotely. This flexible role involves designing coding problems, evaluating AI-generated code, and providing valuable feedback. Candidates should be fluent in English, preferably... 
    Suggested
    Hourly pay
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    5 days ago
  • $75 per hour

     ...Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based,... 
    Freelance
    Hourly pay
    Permanent employment
    Temporary work
    Part time
    10 hours per week

    Mind Rift

    Columbia, SC
    3 days ago
  • $60 per hour

    Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not... 
    Freelance
    Permanent employment
    Temporary work
    Part time
    10 hours per week

    Mindrift

    Columbia, SC
    1 day ago
  • $60 per hour

     ...DataAnnotation team and contribute to developing cutting‑edge AI systems, while enjoying the...  ...Android development. Write clear, high‑quality code snippets and detailed explanations...  ...progress). Previous experience as a Software Developer, Coder, Software Engineer,... 
    Suggested
    Hourly pay
    Full time
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    1 day ago
  •  ...Description We are seeking an experienced Software Developer with 3-5 years of professional experience...  ...professional experience, side projects, or freelance work, we prioritize dedication to continuous learning and quality engineering. This position is based at our... 
    Freelance
    For contractors
    Local area

    Scientific Research

    Charleston, SC
    4 days ago
  • $45 per hour

     ...scraping workflows within our hybrid AI + human system. In this role,...  ..., domain expertise, and quality control to deliver accurate...  ...across the globe. This is a freelance role for a Tendem project. As...  ...web scraping, automation, or software development (required). Bachelor... 
    Freelance
    Hourly pay
    Part time
    Remote work
    10 hours per week

    Mindrift

    Columbia, SC
    1 day ago
  •  ...Description Job Description Job Title: Developer III Strong understanding of applications/development, quality assurance and integration methodologies, concepts and...  ...employees, clients, vendors etc. Minimum Required Software and Other Tools: Strong knowledge of... 
    Contract work
    Work experience placement
    Second job
    Remote work

    United Global Technologies

    Columbia, SC
    18 days ago
  • $20 per hour

     ...DataAnnotation is committed to creating quality AI. Join our team to help train AI chatbots while...  ...analytical, detail-oriented small business owners, freelancers, and independent contractors to teach AI chatbots. You will develop complex prompts to test AI models, write... 
    Freelance
    Hourly pay
    Full time
    Contract work
    Part time
    For contractors
    Self employment
    Remote work

    DataAnnotation

    Columbia, SC
    3 days ago
  •  ...are looking for a remarkable Software Development Engineer to join...  ...into the hands of citizens, developers, businesses and researchers....  ...Responsibilities Build and ship high-quality customer-facing features....  ..., jQuery, Typescript and Ruby on Rails. Have experience... 
    Ruby
    Local area
    Visa sponsorship

    Tyler Technologies

    Charleston, SC
    3 days ago
  •  ...Position Overview This position is intended to be an entry level position focused on software functional testing and quality assurance, and the fulfillment of relevant procedure and documentation per Fujifilm Medical Informatics Design Control process for software development... 
    For contractors
    Work experience placement
    Work at office
    Local area
    Remote work
    Flexible hours

    FUJIFILM Corporation

    Columbia, SC
    5 days ago
  • $100k - $130k

    Description Our Senior Java Developer designs, builds, and maintains the back-end services that power the Medicare Provider Portal, and...  ..., high-performance code that meets healthcare compliance and quality standards. They ensure adherence to architectural guidelines, coding... 
    Contract work
    For contractors
    Work experience placement
    Local area
    Immediate start
    Remote work
    2 days per week

    WPS Health Solutions

    Charleston, SC
    2 days ago
  •  ...Defense and other U.S. Government agencies. We are hardware and software developers with experience turning research into impactful products for...  ..., skills, and toolsets such as Java, C, C++, C#, SQL, Ruby, Perl, PHP, Python, Scala, and Go. Proficient knowledge of Git... 
    Ruby
    Work experience placement
    Local area
    Immediate start
    Relocation package
    Night shift

    Integer Technologies

    Columbia, SC
    1 day ago
  • $40 per hour

    A leading AI development company in the US is looking for quantitative professionals to evaluate and enhance AI systems. Join a fully remote team that allows you to work from anywhere and set a flexible schedule. Ideal candidates will have hands-on experience in data science... 
    Hourly pay
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    3 days ago
  • $165k - $180k

     ...Next! Summary We are seeking a highly skilled and motivated Sr. AI Data Engineer with a proven track record in building scalable data...  ...integrating a variety of open-source tools to enhance data quality, workflow automation, and metadata generation. What You'll Be Doing... 
    Work experience placement
    H1b
    Work at office
    Local area

    Karsun Solutions

    Columbia, SC
    3 days ago
  • A leading AI content organization is seeking a Bilingual Educational Content Developer (Japanese/English) to train AI models. This role involves evaluating AI chatbots'...  ...PayPal. The hourly rate starts at $25, with bonuses available for high-quality work. #J-18808-Ljbffr
    Hourly pay
    Contract work
    Remote work

    DataAnnotation

    Columbia, SC
    2 days ago
  •  ...Senior Data Scientist / AI Engineer Location: Greenville, SC (Hybrid, 3 days onsite...  ...solutions. This role will focus on designing, developing, testing, and deploying AI-powered...  ...7 members. Includes program management, software engineering, and data science professionals... 
    Long term contract
    3 days per week

    Akaasa Technologies

    Greenville, SC
    1 day ago
  • $40 per hour

     ...A leading AI development firm seeks experienced quantitative professionals to evaluate AI-generated outputs. As part of a flexible and fully remote team, you'll solve quantitative problems and provide insights that shape AI reasoning. Candidates should possess over 2... 
    Hourly pay
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    2 days ago
  •  ...Description AI/ML Full Stack Developer (.NET Experience) Location: Fort Mill, SC Experience: 10+ Years Duration- Full-Time Position...  .... Required Skills ~10+ years of experience in software development. ~ Strong experience with C#, ASP.NET Core,... 
    Full time

    Qode

    Fort Mill, York County, SC
    1 day ago
  • $40 per hour

     ...We are looking for a Content Developer - Biology to join our team to train AI models. You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of each model. In this role you will need to hold an expert level... 
    Hourly pay
    Full time
    Contract work
    Part time
    Remote work

    DataAnnotation

    Columbia, SC
    2 days ago
  •  ...Description Owning the entire DevSecOps stack including workflow, infrastructure, design, and operational processes for a team of developers Maintaining and improving existing CI/CD workflows, infrastructure, and tools, ensuring operational continuity Supporting... 
    Full time
    For contractors
    Local area

    Scientific Research

    Charleston, SC
    5 days ago
  • $60 per hour

    A leading AI development company is seeking proficient programmers for remote work. Enjoy flexibility in choosing projects and schedules...  .... Responsibilities include solving coding challenges, writing quality code, and providing feedback on AI models. Candidates should... 
    Hourly pay
    Remote work

    DataAnnotation

    Columbia, SC
    3 days ago
  • $40 per hour

    A leading AI development company is seeking quantitative professionals to contribute to the evaluation of AI-generated analyses. This fully remote role offers flexibility in scheduling and competitive pay starting at $40 per hour. Responsibilities include evaluating technical... 
    Remote job
    Hourly pay

    DataAnnotation

    Columbia, SC
    1 day ago
  • $123.2k - $156.7k

     ...Senior AI Engineer We are seeking an experienced Senior AI Engineer to join our strategic...  .... You'll work at the intersection of software engineering and artificial intelligence,...  ...owners, and business stakeholders to develop AI agents that solve complex business challenges... 

    CGI

    Columbia, SC
    1 day ago
  • $92.5k - $209.5k

     ...Job Description As a Senior AI Software Engineer in an AI Innovation organization within...  ...engineering, technical leadership, and high-quality execution. This is a software...  ...policy enforcement, and evaluation. Develop distributed services optimized for low latency... 
    Temporary work
    Flexible hours

    Oracle

    Columbia, SC
    5 days ago
  •  ...Mercedes-Benz Vans AI/ML Engineer Shape the future today. The world is changing...  ...Mercedes-Benz Vans, interdisciplinary teams are developing the mobility of tomorrow. Our goal is to...  ...Mercedes-Benz Vans is world renowned for quality and innovative products. EXCELLENT... 
    Local area

    Mercedes-Benz US

    Charleston, SC
    2 days ago
  • $60 per hour

     ...A leading AI development company is seeking proficient programmers to join their remote team. You will design coding challenges for AI systems, evaluate AI-generated code, and work flexibly on various projects. Suitable candidates should be fluent in English and have... 
    Hourly pay
    Remote work

    DataAnnotation

    Columbia, SC
    3 days ago
  • $126.07k - $196.98k

     ...technical expertise to develop market-leading products...  ...performance computing and AI, climate friendly cooling, and high-quality paints and coatings for...  ...productionize traditional software applications and GenAI...  ...employee experience is to assure we're operating with a... 
    Work at office
    Local area
    Remote work

    Chemours

    Columbia, SC
    2 days ago
  • $60 per hour

     ...DataAnnotation team and contribute to developing cutting‑edge AI systems, while enjoying the...  ...Android development. Write clear, high‑quality code snippets and detailed explanations...  ...progress). Previous experience as a Software Developer, Coder, Software Engineer,... 
    Hourly pay
    Full time
    Remote work
    Flexible hours

    DataAnnotation

    Columbia, SC
    3 days ago
  • $90k - $105k

     ...global life sciences data and AI solutions provider dedicated to...  ...work centers on curating high-quality fine-tuned datasets which...  ...SME and technical colleagues, develop novel methods and parameters of...  ...agents, throughout the entire software development lifecycle (SDLC).... 
    Full time
    Temporary work
    Work at office
    Local area
    Remote work
    Flexible hours

    Norstella

    Columbia, SC
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Freelance Software Developer (Ruby) - Quality Assurance (AI Trainer) [Remote]. Be the first to apply!